Babbitting device



March 7, 1933. THQRSEN' 1,900,746

BABBITTING DEVICE Filed Feb. 2. 1951 2 Sheets-Sheet l March 7, 1933. T. THORSEN BABBITTING DEVICE Filed Feb. 2. 1951 2 Sheets-Sheet 2 Patented Mar. 7, 1933 UNITED STATES PATENT OFFICE THOR THORSEN, F PLYMOUTH TOWNSHIP, HENNEPIN COUNTY, MINNESOTA, AS-

SIGNOR'TO STORM MANUFACTURING COMPANY, OF MINNEAPOLIS, MINNESOTA, A

CORPORATION OF MINNESOTA BAIBBITTING DEVICE Application filed February 2, 1931. Serial No. 512,909.

My present invention relates to babbitting devices for general use, but especially designed for re-babbitting connecting rod bearings and the like, and has for its object the provision of such a device that is simple in construction and mode of operation, and provided with interchangeably useable parts adapting the device for adjustment for different sized bearings.

Generally stated, the invention consists of the novel devices and combinations of devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views.

Referring to the drawings:

Fig. 1 is a perspective view of the babbitting device with the carrier in an open position, and also showing a connecting rod mounted in the device with its half bearing positioned to be re-babbitted;

Fig. 2 is afragmentary perspective View of the upper portion of the babbitting device with the carrier closed;

Fig. 3 is a plan view of thebabbitting device with some parts broken away;

Fig. 4 is a view principally in section taken on the line 44 of Fig. 3;

Fig. 5 is a fragmentary view partly in plan and partly in section taken onthe irregular line 55 of Fig. 4;

Fig. 6 is a detail view principally in section taken on the irregular line 66 of Fig. 3; and

Fig. 7 is a fragmentary detail view with some parts sectioned on the line 77 of Fig. 3, on an enlarged scale.

The numeral 8 indicates a cast metal annular base, provided with three circumferentially spaced short legs 9, having wide outturned feet 10. These feet 10 have holes through which. lag screws or bolts may be inserted to rigidly secure the babbitting device to a bench or other support. Formed with the base 8 is a bracket 11 which projects radially forward therefrom in the plane of said base.

Mounted on the base 8 is an upstanding face plate 12, having on its back, at the bottom thereof, a pair of rearwardly projecting bearing lugs 13, which rest directly on the base 8 and are detachably but rigidly secured thereto by cap screws 14. The face of the plate 12 is perpendicular to the base 8, and extends diametrically through the axis of said base. Hereafter when reference is madeto the face plate 12, it will be understood that it refers to the front surface thereof.

Formed in the base 8, forward of the face plate 12, is a depressed semi-circular seat 15, the center of which is at the axis of the base 8. Removably mounted on the face plate. 12. is an upright core 16 that is semi-circular in cross-section, the cord of which is parallel to said plate, and its axis is aligned with the axis of the seat 15. This core 16, at its lower end, rests on the bottom of the seat 15, and its upper end is substantially flush with the upper end of the face plate 12. Y

As shown, the core 16 is hollow, and formed therein, near each end thereof, is a boss 17, the outer face of which is in the same plane with the back of said core. These bosses 17 are tapped to receive a thumb screw 18, which extends'through a notch 19 in the upper edge portion of the face plate 12. When mounting the core 16 on the face plate 12, the thumb screw 18 may be screwed into either one of the bosses 17 and the respective end of the core 16 turned uppermost .so that the thumb screw 18 will enter the notch 19 by an endwise downward movement of the core 16 parallel to the face plate 12. When the thumb screw 18 is tightened, the core 16 will be clamped against the face plate 12.

A bed 20, in the form of a flat semi-circu- Iar plate is removably mounted in the seat with itscord engaging the face plate 12 to hold said bed against shifting or turning movement in the seat 15. Formed in the bed 20, at the axis thereof, is a notch 21 of substantially the same diameter as thecore 16 and fits said bed there-around. Obviously, this notch 21 will hold the lower endrportion of the core 16 against shifting movement on the face plate12. A flange forming recess rabbet 22 is formed in the upper face of the'bed 20, concentric with the notch 21 (see Fig. 4)

Cooperating with the face plate 12 and bed 20 is a cope 23 of the same size and shape as the bed 20, and its notch, through which the core 16 projects, is designated by the numeral 24. Formed in the bed 20, at a point perpendicular to the face plate 12 and at the core 16, is a gate 25. G11 the inner face of the cope 23 is a flange forming recess26 that is identical, as to shape and position in respect to the core 16. with the flange recess 22.

The cope 23 is removably mounted in a segmental seat 27 in the inner face of a segmental carrier 28, and the centers of said seat and carri r, and hence the cope 23, are coincident and arranged to be brought into axial alignment with the core 16 and bed 20. Formed with carrier 28, at the right hand end of its cord, is a large hinge lug 29, turnably mounted on a long sleeve nut 30, having intermediate of its ends an annular shoulder 31 which rests on the upper face of said lug. Applied to the nut 30, below the hinge lug 29, is a collar 32, held in place by a set screw 33, and which collar support-s the carrier 28 fron the hinge lug 29 for turning movement about the axis thereof.

Formed wi h the upper end of the nut 30 is a hand wheel 34 by which said nut may be rotated. The nut 30 is mounted on a screw threaded post 35, anchored at its lower end to the base 3, as shown in Fig. 7. Obviously, by manipulating the hand wheel 34;, the carrier 28 may be either raised or lowered on the post to position the cope 23 different distances above the bed 20.

The cope 23 is detachably but rigidly secured to the carrier 28 by a dowel pin 36 and a thumb screw 57 located at diametrically opposite points (see Fig. 6). Formed in the carrier 28 at the core 16. is a basin 38 which drains into the gate A handle 39 is formed with the left hand end portion of the carrier 28 and by which said. carrier may be swung horizontally about the axis of the post 35. Formed in the cope 23 at the corners of the notch 24E are vents 40.

To lock the carrier 28 in a position in which its cord and the cord of the cope 23 engage the face plate 12, there is provided a screw threaded post a l, anchored to the base 8 at the opposite side thereof from the post 35, and mounted thereon is a thumb nut 12. A lock notch 43 in the carrier 28 is arranged to embrace the post 41 when the cope 23 is in an operative position. By turning the thumb nut l2 downward on the post ll, the same will impinge against the upper face of the carrier 28 and frictionally hold the same from turning on the nut 42.

T o re-babbitt the half bearing A. on a connecting rod B,- the same is positioned, as shown in the drawings, where said half hearing rests on the bed 20, concentric with the core 16, and with its joint surfaces in contact with the face plate 12. The connecting rod B loosely rests on a support in the form of a large flat head 44, on an upright screw having threaded engagement with the bracket 11. This screw may be mounted on the intermediate portion of the bracket 11, as shown, or on the outer end portion thereof and the tapped holes therefor, as indicated at 46. The screw head 4.1 is provided with a knurled periphery to facilitate the turning thereof to raise or lower the screw l' and position connecting rod B with the axis of the half hearing A perpendicular to the bed 20, coincident with the axis of the core 16.

, To hold the half bearing A clamped onto the face plate 12, there is provided a pair of long horizontal thumb screws 17 which extend transversely through a pair of posts 48, and have screw hreaded engagement therewith. The posts l8 are mounted in borelike seats 49 in the base 8, for compound turning and axial adjustments. Thumb screws 50, having screw threaded engagement with the base 8 at the periphery thereof, extend into the seats 4-9 and impinge against the posts 48 and adjustably hold the same.

As shown, the posts 48 are adjusted to position the set screws 47 so that they extend substantially radially from the axis of the core 16, and in converging relation substantially midway between the bed and the cope 23, with their inner ends impinging against the half bearing A. between the connecting rod B and the lugs C for the bolts which connect the other half bearing to the half hearing A.

Obviously, the converging set screw 4:7 not only holds the half hearing A pressed against the face plate 12 at its joint surfaces, but it also holds the same concentric with the core 16. The carrier 28 is adjusted on the post so that the under face of the cope 23 has a working fit with the upper end of the half bearing A.

To facilitate the positioning of the half bearing A concentric with the core 16, there is provided a scale 51 on the face plate 12 in the form of vertical lines spaced equi-distances apart from a line, connecting the aXes f the bed 20 and the cope 23.

It may be here stated that before the screw 18 is tightened to clamp the core 16 onto the face plate 12, the carrier is closed to cause the cope 23 at its notch 2% to engage said core and center the upper end portion thereof. The lower end of the core 16 is, of course, centered by the notch in the bed 20 onto which it extends.

The clamping of the half bearing A onto the face plate 12 completes tne mold cavity 52, formed by the face plate 12, core 16, bed 20, cope 23, and said half hearing.

The molten Babbitt metal is poured into the mold cavity 51 through the basin 38 and gate 25, and forms a lining D for the half bearing A having end flanges E formed by the recesses 22 and 26 in the bed 20 and cope 23 respectively.

For the purpose of this case, it will not be necessary to describe the process of preparing the half hearing A to receive the Babbitt metal, or the finish of the same after the connecting rod B is removed from the device.

Throughout the specification, the expressions axially aligned, concentric, and the like, have been used, but in some uses of the device these expressions may not be strictly true, for instance where it is necessary to allow clearance for shims between the half bearings of the connecting rod.

The purpose of removably mounting the core 16, bed 20, and cope 28, and mounting the carrier 28 for vertical adjustment, is to adapt the babbitting device for different sized bearings to be babbitted or re-babbitted.

Each babbitting device delivered to the trade will be furnished with a plurality of cores of different diameters, and beds and copes of the same diameters, but having notches of different diameters to fit the respective core used in respect thereto.

Vhat I claim is:

1. A device of the class described comprising a base having a fixed upright face plate, a bed directly mounted on the base, a cope mounted on the base for movement to and from an operative position, a core on the face plate between the bed and cope, a pair of posts on the base, and a pair of converging set-screws mounted on the posts for axial movement on lines that radiate substantially from the axis of the core for holding a piece of work between the bed and cope in a definite position, in respect to the core, for cooperation with the face plate, core, bed and cope to complete the mold cavity.

2. A device of the class described comprising a base having a fixed upright face plate, a core on the face plate, a bed directly mounted on the base, a screw threaded post on the base, a nut-acting member on the post, a carrier hinged to the nut-acting member for swinging movement toward or from the face plate, a cope mounted on the carrier, means for securing the carrier with the cope in an operative position in respect to the face plate, bed and core, and means for holding a piece of work between the bed and cope in a definite position in respect to the core for cooperation with the face plate, core, bed and cope to complete the mold cavity.

3. A device of the class described comprising a base having an upright face plate and also having a recessed seat forward of the face plate, a core on the face plate with its lower end portion extending into said seat, fastening means detachably securing the core at its upper end portion to the face plate, a bed plate removably mounted in the seat, fitting around the core and holding the same positioned on the face plate, a vertically adjustable carrier mounted on the base and having a recessed seat, a cope removably mounted in the seat in the carrier and having a contour that closely follows the core when said cope is in an operative position, means for securing the carrier with the cope in an operative position in respect to the face plate, said bed and cope having on their opposing faces flange forming recesses, and means for holding a piece of work between the bed and cope in a definite position in respect to the core for cooperation with the face plate, core, bed and cope, to complete the mold cavity.

4:. The structure defined in claim 1 in which the posts are vertically adjustable.

5. The structure defined in claim 1 in which the posts are mounted to turn about their axis to vary the convergence of the setscrews and releasable means for rigidly securing the posts to the base.

6. A device of the class described comprising a base having a fixed upright face plate, a bed directly mounted on the base, a cope mounted on the base for movement to and from an operative position, a core on the face plate between the bed and cope, means for holding a piece of work between the bed and cope in a definite position, in respect to the core, for cooperation with the face plate, core, bed and cope to complete the mold cavity, and a scale on the face plate for positioning the work on the bed in respect to the core, said scale comprising a multiplicity of parallel lines which extend substantially the full height of the face plate and are spaced equidistances in opposite directions from the axis of the core.

7 A device of the class described comprising a base having a face plate, a bed on the base, a cope mounted on the base, a core on the face plate between the bed and the cope, and a pair of converging set-screws mounted on the base for axial movement on lines that radiate substantially from the axis of the core, said set-screws being further mounted to swing about axes that are substantially parallel to the face plate to change their degree of divergence.

8. A device of the class described comprising a base having a face plate, a bed on the base, a cope mounted on the base, a core on the face plate between the bed and the cope, and a pair of converging set-screws mounted on the base for axial movement on lines that radiate substantially from the axis of the core, said set-screw being further mounted for bodily movements longitudinally of the axes about which they are mounted to swing.

9. A device of the class described comprising a base having a face plate, a bed on the base, a cope mounted on the base, a core on the face plate between the bed and the cope, a pair of posts mounted on the base to turn about their axes, and a pair of set-screws mounted on the posts for axial movements transversely thereof and on lines that radiate substantially from the axis of the core.

10. A device of the class described comprising a base having aface plate, a bed on the base, a cope mounted on the base, a core on the face plate between the bed and the cope, a pair of posts mounted on the base for endwise adjustment and for turning movement about their axes, means for holding the posts against endwise or turning movements, and a pair of set-screws mounted on the posts for axial movements transversely thereof and on lines that radiate substantially from the axis of the core.

11. A device of the class described comprising a base having a face plate, a bed on the base, a carrier mounted on the base for swinging movement substantially parallel to the bed and for bodily movement toward or from the bed, a cope mounted on the carrier, a core on the face plate around which the cope is fitted and held by the carrier with freedom for adjustment longitudinally thereof by the carrier. and means for holding a piece of work between the bed and cope.

In testimony whereof I aflix my signature.

THOR THORSEN, 

